Reaction tank



FIG. 1 is a perspective view of a reaction tank showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a cross-section view thereof with the internal parts omitted, taken along the line 8-8 of FIG. 2; and,

FIG. 9 is an enlarged front view thereof in a state of use.

The broken lines shows portions of the reaction tank form no part of the claimed design. 

CLAIM The ornamental design for a reaction tank, as shown and described. 